Automatic fluid supply actuated motor and piston additive device



Dec. 17, 1963 N. CORDIS 3,114,379

' AUTOMATIC FLUID SUPPLY ACTUATED MOTOR AND PISTON ADDITIVE DEVICE Filed March 9, 1960 2 Sheets-Sheet 1 fnz/rzlar- 14f 6071115.

Dec. 17, 1963 CORDls 3,114,379

AUTOMATIC FLUID SUPPLY ACTUATED MOTOR AND PISTON ADDITIVE DEVICE Filed March 9, 1960 2 Sheets-Sheet 2 i Q HQ I F M Ri I i. N Q t I V f I a h I 1 s U) i i l I Q Q5 H x 3 T l I Q I R 1 Q I w m l, l Ira 2271f! g i/aiorz/z's. g g I z'mayxu...

United States Patent 3,114,379 AUTQMATKY FlblUlD SUPPLY AQTUATED MGTQR AND PHSTUN ADDllTl /E DEVHIE Nat Cord-is, Crown Farms, Silver Lalre, Wis. Filed Mar. 9, word, Ser. No. lnfifl S illaims. (tCl. i3i%) This invention relates to a self-powered fluid proportioning a sratus for mixing a treating fiuid with a flowing raw fluid discharging the treated fluid under pressure. More particularly, the invention relates to a system for medicating drinking water of live stock, including poultry.

Many types of equipment have heretofore been propose-:1 for feeding one fluid, including drugs, vaccines, nutrients, sanitizing materials and the like into a second fluid stream such as water. Such prior systems, however, have been complicated in construction, unreliable in operation, cumbersome in use, not adapted for both portable and automatic continuous installation, or have not been selfpowere it is therefore a primary object of the present invention to provide new and novel self-powered apparatus for continuously and automatically treating raw water streams with a fluid treating agent. A further object of the invention is to provide a system for feeding a first fluid into a second iiuid selected proportions over a Wide range of pressures and flow rates or" the second fluid. An additional object of the invention is to provide an eiiicient and reliable device which is portable and rugged. Another object of the invention is to provide a system which requires no power for operating the apparatus other than the flowing stream being treated. it is also an object of the invention to provide an apparatus particularly adapted for use in medicating the drinking water of poultry and for delivering the treated water under pressure into the water distribution system, such as a system including drinking troughs having float-controlled inlet valves. These and other objects of the invention will become apparent as my descripti n thereof proceeds.

Briefly, according to my present invention, I provide a selipropolled fluid blending apparatus which includes a hydraulic master motor operated by the primary raw fluid to be treated, a slave pump means for the treating l'luid actuated by such motor, and a delivery manifold means through which the fluid used to operate the motor and the treating fluid from the slave pump are discharged. The slave pump and hydraulic motor comprise a unitary system wherein a connecting rod carried by a piston in the hydraulic motor is provided with a cylindrical chamber movable about a fixed slave pump plunger. Metering and check valve means communicate with the fixed hollow plunger and the treating agent and the water are discharged into the delivery manifold means wherein the ii s become intimately mixed. Details and advantages of the apparatus, in accordance with this invention, will be described by reference to the accompanying drawings wherein:

FIGURE 1 is an elevation, partly in section, of one embodiment of my apparatus;

FlGURE 2 is an end View taken along the line 2-2 in PlGURE 1;

FIGURE 3 is another elevation of the apparatus in FIGURE 1 with components in a shifted position; and

3,lld,3? Patented Dec. 17, 1963 FIGURE 4 is an end View taken along the line 4-4 in IGURE 3.

Referring to the drawings, the apparatus illustrated includes the water inlet it the water outlet ll, the watergating assembly 13, the water motor 1 1-, the reset tappet means 15, connecting rod 16, slave pump 1'7, and treating agent valve means 15% having inlet 19 and outlet 24}.

The water enters valve chamber 24 in the watergating assembly 13 through line to and is gated into the motor body 26 via flow channel 62 in slide valve do and channel or 45 to supply fluid pressure on alternate ides of the motor piston 2? via channel or The water exits from opposite sides of motor piston 26 via channel or 43, channel or through channel 6% or dill) in slide valve 6-9 to chamber 2-7 or 2?; in block 35 to outlet line 11. The slave pump 17 comprises a connecting rod 16 carried by the face of the piston 2?, rod passing through the end wall of the motor body 25. The pump plunger 3b is mounted in the opposite wall 35' of the motor body 26 and is provided with the G-ring gaskets on either side of the flange 37 on plunger 39, as shown in FIGURES 1 and 3.

The slave pump valve means 18 fixed to the end wall 35 contains the inlet and outlet check valve assemblies 38 and 46 and the inlet connection 19 and outlet 2%. A bore in the end of rod 16 accommodates the fixed pump plunger 3d, the cylinder to operating to-and-fro over the plunger in response to the movement of the motor piston 29. The piston 29 is driven by the water entering the gating system 13 and expelled by the piston 29 alternately through channels 42 and 43, shunt valve so and the manifold block 39 which discharges through outlet 11.

.l/hen the connecting rod 16 moves the cylinder ill away from the pumping plunger 3t) treating fluid is drawn into the treating agent valve assembly 18 through the open inlet check valve 38 and at the same time the suction produced by the withdrawal of the cylinder 49 about the hollow plunger 3% closes the outlet check valve 46, which when subsequently opened discharges into the manifold 3?.

When the direction of travel of the pumping cylinder it) is reversed over the hollow plunger 39 in following the motion of the motor piston 29 through the rigid connecting rod to, the inlet check valve 32 closes and the outlet check valve as opens so tb t the treating fluid trapped in the pumping barrel 3% Within plunger 39 is ejected under pressure into the manifold 39 via line The water and edication which leave manifold 39 is in a fixed propor tion based upon the displacement volume of the slave pump 17 and the volume of the motor chamber 26 on either side of the motor piston 29.

if desired, a multiplicity of check valvepump assemblies may be provided and actuated by the water motor 14. In this way several types or" treating agents or additives may be blended with the water at the same time.

The pumping valve block l8 houses the inlet check valve 38 and the outlet valve 46. The inlet line it? is connected to the inlet channel. The inlet check valve 3% comprises a deformable hol ow cylinder 5% having a selfclosing port Sit. The outlet check valve it comprises a plug 52 held by spring 53 against the valve seat. The delivery channel 54- communicates with the valve block 213 above the spring-loaded plug 52 and discharges by line 20 into the manifold 39.

The slave pump 17 includes the cylinder shaft com prising the connecting rod 16 with its pump cylinder boreiil. The treating fluid plunger 30 is tubular with an i ternal pumping channel Elia. O ring 55 on the free end. of the pumping plunger 30 engages the wall of the pump cylinder 4% to provide a pumping seal.

On a suction stroke of the pumping cylinder 4d the: elastic cylinder 50 of inlet check valve expands to open the port 51; and the plug 52 on the outlet check. valve &6 is held against the valve seat. When the pump-- ing cylinder is on the ejection stroke, this situation. is reversed so that the plug '2 is lifted and the port Sll. is cylinder 59 is closed.

The gating system 13 within the valve chamber 24 in-- eludes the two cylindrical plugs and 59 and slide shunt. valve 69 which is retained by leaf spring 61. The flow channel 62 in the slide valve 69 is alternately brought into register with the appropriate channel 42 or d3 and the motor cylinder outlet channels or 35 to direct flow into and through the valving chamber 13, the motor body' 26 on alternate sides of the piston 29, and discharge through manifold To control the gating of the driving water into the motor l4: 1 provide the selfdubricated plastic shunt valve 63 which is shifted by the Valve rod '75" having loop 71.. The connecting rod 16 carries the rocker assembly 35 comprising a holder '73 fixed to the reciprocating rod 16,. a rocker arm 74 pivotally held by pin '75, stud '76- passing through the rocker arm '74 and alternately con tacting spring-loaded pins '77 and The arm 74 excnds through the loop '71 and the upper end is provided. with an adjustable cap '75 which contacts the snubbing roller 8d held by roller bracliet Ell which is secured to the top of the shunt valve chamber 24.

As the piston 29 travels in the motor cylinder 26 the connecting rod 16 carries the rocker assembly with it. causing the rocker arm 7a to pivot between the two positions shown in FIGURES 1 and 3 of the drawings. At the limits of travel of the rod 16, an end of the loop 71 on the valve rod 76 is engaged to shift the valve rod. 76 and hence the shunt valve into the alternate posi-- tions as shown in the drawings. This causes the water to course through the channels 42 and 43 leading to the opposite sides of the piston 29 thereby displacing. the piston 29 to opposite ends of the motor cylinder 26' and actuating the slave pump 17.

in another embodiment of my apparatus the rocker arm and holder may be replaced by a section of flexible shaft extending through the loop in the valve rod end, the shaft whipping under the roller and shifting the shunt valve as described above.

in the illustrated embodiment of the invention, the end walls 34 and 35 are secured to the motor body 26' by bolted flanges, but it will be apparent that other socuring means may be used.

Materials of construction will be selected to be com-- patible with the fluids. For example, with corrosive treating agents 1 may use a nylon pumping plunger 34] in a glass or stainless steel cylinder 4%, and the check valve assemblies 33 and 46 in block 18 may be of plastic or stainless st el. Other metals provided with ceramic or plastic coatings also may be used.

This application is a continuation in part of my copending application S.N. 680,259, filed August 26, 1957, and entitled Proportioning Medicator for Waterers.

Although I have described my invention with particular reference to preferred embodiments thereof, it should be understood that this is by way of illustration only and that modifications therein may be made in View of my teaching without departing from the spirit and scope of the invention.

What l claim is:

l. A fluid-powered dispenser for use with water systems which comprises in combination, water supply inlet means, constant displacement hydraulic motor means into which said inlet means discharges, slave displacement pump means, said displacement pump means and said motor means having outlet conduit means discharging into delivery conduit means, and master piston means in said motor means, said displacement pump means inclu"- ing slave barrel means and cantilever-mounted tubular pump means, said slave barrel means and said tubular pump means being in telescoping axial alignment and both being disposed within said motor means.

2. A fluid proportioning device comprising a master hydraulic motor means, slave pump means actuated by "cial array, a minor piston in said pump means, said or piston comprising a tubular member and being of substt "ally smaller displacement than said major piston, connecting rod means carried by said major piston means, pump barrel means carried by said connecting rod at one end thereof within said motor n eans, said barrel means being rcciprocatcd along said minor piston, spring-loaded toggle arm means linked to the other end of said connecting rod exterior of said motor means, valve for gating a first fluid through said motor means, said toggle arm means actuating sai gating valve means, paired check valve means for gating a second fluid through said pump, and delivery conduit discharging a proportioned mixture of fluids from said motor means and said slave pump.

3. A treater device for fluid systems which comprises a first cylinder, :1 first piston means operable in said first cylinder, said piston means including a connecting rod, a second cylinder in said connecting rod associated with said first piston means, a second piston within said second cylinder pumping barrel having communication with said second cylinder intermediate the ends of said barrel, said barrel having inlet and outlet ends, check valve means at inlet and outlet ends of said barrel, on-oif control valve means gating a first fluid into said first cylinder alternately on opposite sides of said first piston, said second piston being wholly within said first cylinder, and means to actuate said control valve means.

4. The device of claim 3 wherein said means for actuating said control means comprises a spring-loaded tappet means, said tappet means being carried by said connecting rod fixed to the first piston and having a free oscillating end exterior of said first cylinder which positions said control valve means.

5. The device of claim 3 wherein the control valve means comprises rod means and a separable slide member shiftable therewith exposing alternate fluid supply channels discharging into said first cylinder on opposite es of the first piston.

6. Proportioning apparatus comprising a pressure operated hydraulic motor, said motor comprising a first piston reciprocatable within a chamber, and connecting rod means propelled by said piston, conduit means for delivering a first liquid under pressure to said motor, gating valve means interposed said conduit means and said chamber, spring-loaded pivoted valve-shifting arm means between said connecting rod means and said gating valve means, second conduit means for discharging liquid from said motor, reciprocating pump means wholly within said chamber and driven by said motor, the said pump means including pump chamber means, a pumpim piston and a pump barrel in said connecting rod, said barrel operating about said pumping piston, .ctering check valve means controlling flow of a second liquid into said pump means, second check valve means controlling flow from said pump means, and delivery conduit means into which said second conduit means and said second check valve means discharge mixed first and second liquids.

7. The apparatus of claim 6 wherein said pumping piston is tubular and the said valve gating means comprises a separa le flow-diverting member and a shiftable hold r for said diverting member, said diverting member being shifted by said holder to expose alternate water supply channels and thereby to gate flow into said motor means on opposite sides of the said first piston.

8. An apparatus for blending two fluids in selected proportions which comprises a master hydraulic motor means driven by the first of said fluids, slave pump means for the second of said fluids, said slave pump means including a first fixed hollow piston, a pump chamber, a pair of opposed check valves controlling the inlet and outlet of said chamber, said motor means comprising a second piston operating within a motor chamber, a connecting rod fixed to said second piston, a cylindrical chamber in an end of said rod, said cylindrical chamber receiving said first hollow piston whereby movement of said second 5 to co-mingle the fluids in the desired proportions.

References Cited in the file of this patent UNITED STATES PATENTS 2,203,832 Malburg June 11, 1940 2,463,552 Newhall Mar. 8, 1949 2,887,094 Krukemeier May 19, 1959 UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No, 3,, 114 379 December 17 1963 Nat Cordis It is hereby certified that error appears in the above numbered patent requiring correction and that the said Letters Patent should read as corrected below.

Column 4 line 33 after "cylinder" insert g a "-0 Signed and sealed this 18th day of August 1964,

(SEAL) Attest:

ERNEST w. SWIDER' EDWARD J. BRENNER Attesting Officer Commissioner of Patents s 

1. A FLUID-POWERED DISPENSER FOR USE WITH WATER SYSTEMS WHICH COMPRISES IN COMBINATION, WATER SUPPLY INLET MEANS, CONSTANT DISPLACEMENT HYDRAULIC MOTOR MEANS INTO WHICH SAID INLET MEANS DISCHARGES, SLAVE DISPLACEMENT PUMP MEANS, SAID DISPLACEMENT PUMP MEANS AND SAID MOTOR MEANS HAVING OUTLET CONDUIT MEANS DISCHARGING INTO DELIVERY CONDUIT MEANS, AND MASTER PISTON MEANS IN SAID MOTOR MEANS, SAID DISPLACEMENT PUMP MEANS INCLUDING SLAVE BARREL MEANS AND CANTILEVER-MOUNTED TUBULAR PUMP MEANS, SAID SLAVE BARREL MEANS AND SAID TUBULAR PUMP MEANS BEING IN TELESCOPING AXIAL ALIGNMENT AND BOTH BEING DISPOSED WITHIN SAID MOTOR MEANS. 